/*
 * Copyright (c) 2011, Shane Conder and Lauren Darcey
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are 
 * permitted provided that the following conditions are met:
 * 
 * * Redistributions of source code must retain the above copyright notice, this list of 
 *   conditions and the following disclaimer.
 *   
 * * Redistributions in binary form must reproduce the above copyright notice, this list 
 *   of conditions and the following disclaimer in the documentation and/or other 
 *   materials provided with the distribution.
 *   
 * * Neither the name of the <ORGANIZATION> nor the names of its contributors may be used
 *   to endorse or promote products derived from this software without specific prior 
 *   written permission.
 *   
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
 * SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * <ORGANIZATION> = Mamlambo
 */
package com.mamlambo.easy3d.helpers;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;

public class OpenGLUtilities {
    public static final float PI = 3.14159265358979323846f;

    static ByteBuffer getByteBufferFromByteArray(byte array[]) {
        ByteBuffer buffer = ByteBuffer.allocateDirect(array.length);
        buffer.put(array);
        buffer.position(0);
        return buffer;
    }

    static FloatBuffer getFloatBufferFromFloatArray(float array[]) {
        ByteBuffer tempBuffer = ByteBuffer.allocateDirect(array.length * 4);
        tempBuffer.order(ByteOrder.nativeOrder());
        FloatBuffer buffer = tempBuffer.asFloatBuffer();
        buffer.put(array);
        buffer.position(0);
        return buffer;
    }

    static IntBuffer getIntBufferFromIntArray(int array[]) {
        ByteBuffer tempBuffer = ByteBuffer.allocateDirect(array.length * 4);
        tempBuffer.order(ByteOrder.nativeOrder());
        IntBuffer buffer = tempBuffer.asIntBuffer();
        buffer.put(array);
        buffer.position(0);
        return buffer;
    }
}
